I brought home a couple of locks from the fleece my fiber buddy and I are splitting, and today I washed up one of them as a reference.
That's washed on top, of course. Both locks were about the same size; this stuff poofs up very nicely in the bath. And the lanolin is very light, which is welcome. I just gave it one go-round in the soapy water (well, I actually use shampoo, because if it works on my hair it should be OK for fleece), and all the grease was pretty much gone.
The fleece is a cormo, entry #1193 from Sue Reuser, who as far as I can tell pretty much doesn't know how to produce a bad fleece. I'm thinking I may buy direct next year, if I have any need of fleece at all (which seems a little unlikely given how much fiber I have now and the fact that I'm going to two more fiber events before the end of the year).